public class Text4 {
    public static void main(String[] args) {
        Thread t = new Thread(new Runnable(){
            @Override
            public void run() {
                while(true){
                    System.out.println("hello runnable");
                }
            }
        });

        t.start();

        while(true){
            System.out.println("hello main");
        }
    }
}
